Mining tool.



N9. 735,356. PATENTED AUG. 4, 1903.. T. M. FISHER.

MINING TOOL APPLIOATION rum) MAR. a1. 1903.

N0 MODEL.

UNITED STATES Patented August 4, 1903. v

PATENT OFFICE.

,MININGE'TOOL.

SPECIFICATION forming part of Letters Patent No. 735,356, dated August4, 1903..

Application filed March 31,1 903. $eria1No. 150,4 54- (No model.)

To all whom it may concern:

Be it known thatLTHoMAsMAssAM FISHER, a citizen of the United States,residing at Montgomery, in the county of. Daviess and Stateof Indiana,have invented certain new and useful Improvements in Mining-Tools, ofwhich the following is a specification.

My invention relates to tools for removing the cuttings fromdrill-holes, especially holes drilled for blastingin coal-mines, and hasfor its object to provide a tool which is simple in construction andeffective in purpose and which may be used, first, toclean thedrillhole, and, second, to tamp the blasting charge. These objects Iaccomplish by the means hereinafter described and claimed, referencebeing had to the accompanying drawings, in which- Figure 1 is a sideelevation of my improved tool. Fig. 2 is a view similar to Fig. 1, butwith the fastening-piece removed and with the disk shown in dotted linesin its inward position; and Fig. 3 is a sectional view on line 03 m,Fig. 1.

Like characters refer to like parts throughout the several figures ofthe drawings.

A is the handle, which may be of any desired length, and b is thecleaning-disk. The

disk I) is circular and is provided at its center with a stem 0, rigidlysecured thereto or integral therewith, which is cut away on its upperside at d to fit a bearing 6, formed on the handle a. A shoulder f isprovided on the handle a to limit the outward turn of the disk I) to aposition perpendicular to the said handle. The stem 0 is curved on itslower side at g toturn in a groove h on the handle a and is providedwith an inclined shoulder" i, which engages the handle at 70 to retainthe disk at a slight angle to the handle a, for a purpose hereinafterexplained.

proper position.

With the parts in the position shown in Fig. 2 in dotted lines and heldin a position such that the cleaning-disk is on the under side of thehandle the tool is thrust into the hole to be cleaned. In going into thehole the disk readily passes over the cuttings; but on being drawn back,because of its inclined position, the disk is engaged by the roughsurface of the drillhole at its lower edge and turned back until thestem 0 comes into contact with the shoulder f and is held in thatposition, and thus brings out with it the material to be removed.

When it is desired to use the tool for tamping the blast, the disk isturned to its position perpendicular to the handle and a spring-cotter iinserted in a hole to to engage the end of the stem 0 and lock the diskin such position. A second hole 3 is provided in the handle to retainthe cotter when not in use.

Abolt may be used, if desired, instead of the cotter 25; but I prefer touse a spring-cotter be cause no fastening means are required to hold itin place.

That I claim as new, and desire to secure by Letters Patent, is-

1. The combination, in a tool, of a handle, a disk centrally pivotedtosaid handle, means for limiting the inward movement of said disk to aposition such that the plane of said disk is inclined to said handle,means for limiting the outward movement of said disk to a positionperpendicular to said handle, and means for locking said disk in suchposition, substantially as described.

2. The combination in a tool, of a handle provided with a fixed and aremovable ear, a

disk provided with a centrally-placed lug adapted to turn between saidcars, a stop to limit the outward movement of the disk, and a secondstop to limit the inward movement of the disk to a position such thattheplane of said disk is inclined to said handle,sub-

guide-slots, and an inclined shoulder on said disk to limit the inwardmovement thereof, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

THOMAS MASSAM FISHER.

Witnesses:

J. P. J AGER, J. 0. SMITH.

